ActionScript for Flash MX: The Definitive Guide, Second Edition

Sound.setTransform() Method

This is the Title of the Book, eMatter Edition

Copyright © 2007 O’Reilly & Associates, Inc. All rights reserved.

Alphabetical Language Reference

|

787

if (panDirection = = "right") {

newPan = panEffect.getPan() + panIncrement;

if (newPan > 100) {

panDirection = "left";

panEffect.setPan(panEffect.getPan() - panIncrement);

} else {

panEffect.setPan(newPan);

}

} else {

newPan = panEffect.getPan() - panIncrement;

if (newPan < -100) {

panDirection = "right";

panEffect.setPan(panEffect.getPan() + panIncrement);

} else {

panEffect.setPan(newPan);

}

}

}

}

// Usage:

theSoundClip_mc.doPanEffect();

The following example causes sounds in soundClip_mc to react to the mouse. Assuming a

Stage width and height of 550 and 400, the sounds pan left and right with the mouse’s

horizontal position and increase or decrease in volume with the mouse’s vertical position.

To try out the effect, create a new movie clip instance named

soundClip_mc on the main

timeline and attach the following code to frame 1 of the main timeline. Then either place

sounds inside

soundClip_mc or export a sound from the Library with an export identifier of

“bgMusic”.

// Create a new Sound object and attach the sound bgMusic to it

soundClip_mc.volControl = new Sound(soundClip_mc);

soundClip_mc.volControl.attachSound("bgMusic");

soundClip_mc.volControl.start(0, 999); // Play and loop the sound

// With every frame, set volume ...